Safety-razor.



L. B. PRAHAR.

SAFETY RAZOR,

APPLICATION FILED MAR.16, 190a.

Patented May 1 8, 190%.

WITNESSES ATTORNEYS ment, and having end s rn'rs LOUIS B. PRAHAR, or NEWYORK, N. Y.

rnrnnrorrrca SAFETY-RAZOR.

Specification of Letters Patent.

Application filed March 16, 1908. Serial No. 221 112.

cutting blade.

In safety razors of the type to which mine belongs, it is customary toprovide a bladesupporting member formed of sheet metal and having. meansintegral with said member or rigidly secured thereto, for holding theblade inthe desired position.

The object'of my invention is to provide a plate with which the bladehas sliding engageguides or lugs to hold the blade 1n engagement withthe plate as the latter is slid into place, sto s to limit the forwardmovement of the Elade, and a spring movable below the plane of the plateand adapted to automatically lock the blade against return movement whensaid blade reaches the desired position.

Reference is to be had to the accompanying drawings, forming a part ofthis specification, in which. similar characters of reference indicatecorresponding parts in all the figures, and in which v Figure 1 is aperspective view of one form of safety razor constructed in accordancewith my invention; Fig. 2 is a transverse section, said section beingtaken on the line 2-.? of Fig. 3; Fig. 3 is a plan view of theblade-supporting plate; Fig. 4 is a plan view of the blade-supportingplate and cutting blade, and showing a slightly modified form ofretaining spring; and Fig. 5 is a section similar to Fig. 2, but takenon the line 5 -53 of Fig. 4.

In the drawings I have illustrated a bladesupporting plate having .ahandle 10 integral therewith at the rear edge thereof, but it is evidentthat the blade-sup jorting plate may be supported and held in anysuitable man nor and by any suitable form of handle.

in the specific form illustrated in Figs. 1, 2 and 3, theblade-supporting plate 1.1 is provided at the front edge thereof :with alurality of slots separating the edge of the p ate into a plurality ofteeth 1 constituting a flat and at the opposite ends thereof, I'proichvide substantially U-shaped-slots .13, w define two sets of lugs 14integral with the body of the plate. ,The lugs are stamped.

up, so that the larger portions thereoflie in a plane substantiallyparallel to the plate and spaced therefrom a distance' substantiallyequal to the thickness of the cutting blade. Thedistance between theouter end of one slotand the outer endof .the other is substantiallyequal to the length of the cutting,

blade, so thatthe lugs 14.serve not only-to Patented May 18, 1909.;

guard or comb. The plate is substantially hold the blade in engagementwith the plate but also prevent long tudinal movement thereof.

At the front edge of the plate andadjaoent the ends of the comb orguard, I provide two pro ections or lugs 15, constituting sto 's forimiting the forward movement of the fade;

These stops are so placed that they engage with the cutting edge of theblade adjacent the corners thereof, so as to protect said corners, aswell as to limit the forward movement of the blade. .At the rear edge ofthe plate .I ro'vide a spring, 16, whic his formed integra with theplate and defined by a sub-- stantially U-shaped slot 17. The slot is ofsufficient may have the desired amount of resiliency, and said tongue orspring is stamped so as to normally extend slightly above the plane ofthe upper surface of the plate but be readily moved downward to aposition below the plane of said upper surface.

In assembling the device, the blade 18, formed of thin steel, is placeddirectly over the spring and depressed to forcc'the spring length, sothat the'tongue or spring the surface of theplatc. The blade is thenmoved-forward while in. engagement with the plate and is slipped underthe two guides or lugs 14, and the forward movement continued until thefront edge of the blade ehgages with the stops 15. At this time, therear edge of. the blade passes out of engagementwith the spring 16,, andthe latter. auto- -matically snaps upward into engagement with the rearedge ofthe bladeto holdthe latter, securely in place and, prevent the:re turn movement. The blade is held against forward movement by thestops 15, against endwise movement by the lugs 14, against rearwardmovement by the spring 16, and

against movement away from theplatebyfifih.

the lugs 14. All of these guides and stops are integral with the plate.an may be stamped therefrom at a single operation.

To remove the blade, it is merely necessary to depress the spring 16with the thumb nail and the blade may freely move rear wardly over the sring and the spring held depressed by the blade until the latter passesfrom under the lugs 14.

If the plate be made of a metal having but little resiliency, as, forinstance, aluminum,

I may, if desired, form the spring of a separate piece of metal, asillustrated in Figs. i and 5. In this case, theplate is provided with anopening 17 adjacent the rear edge thereof, and a spring 16 is secured inany suitable manner to the under side of the plate. As shown, the springhas one end riveted and the opposite end extending upward through theopening 17 and presenting a shoulder adapted to engage with the rearedge of the blade. Other forms of springs may be provided, it only beingessential that thespring be so formed and disposed rs to be capable ofdepression below the plane of the upper surface of the plate, so as topermit the rearward sliding movement of the blade and to automaticz'tllyriseinto engagement with the rear edge of the blade after the latter hasbeen moved forward to the limiting position, that is, into engagementwith the stops 15.

i. am aware that safety razorshave been,

designed in which stops are employed for engagement with the corners ofthe blade at the cutting edge thereof, and also safety razors have beendesigned in which the blade might be removed laterally by sliding frombeneath lugs or guides integral with the plate and formed by bendingoventthe edge tlmreof. By forming the guides of a portion of the platestamped upwardly apd bounded by a substantially U-shaped' slot,Lilii'ore easily adjust them to the thickness of the blade and there isno liability of the lugs being broken off by bending them at such aslarp angle as i iiecessary when the edge of the plate is bent back uponitself to form the guide. By so forming the spring that it may bedepressed below the plane of the plate, the blade may be very readilyremoved upon the depression of the spring-but it cannot becomeaccidentally detached or dislocated. llaving thus described myinvention, I claim as new and desire to secure by Letters Patent:

1. In a safety razor, a blade-supporting member, a blade carriedthereby, means for limiting the forward movement of said blade, meansfor normally preventing the rearward movement of said blade, and guidesfor bold.- ing said blade in engagement with said member and beneathwhich said blade may slide to remove the same, each of said guides beingintegral with said l')lade.supporting member and formed of a portion ofthe body thereof stamped upwardly from the member intermediate its endsand lying n a plane substantially parallel to said member and spacedtherefrom a distance substantially equal to the thickness of the blade.

2. A safety razor, comprising a blade, a bladesupporting member, ahandle therefor, guides adjacent the ends of said member for holdingsaid blade in engagement with said member, stops for limiting theforward movement of said blade, and a spring for normally preventing therearward movement of said blade, said blade-supporting member, handle,guides, stops and spring being stamped from a single piece of sheetmetal.

3. In a safety razor. a substantially flat blade-supporting memberformed of sheet metal and having the front edge thereof constituting aguard,-a handle at the rear edge of uniform thickness and adapted torest directly upon said member and having sliding engagement therewith,means for limiting the forward movement of the blade, guides adjacentthe ends of said member and lying in planes substantially parallel tosaid member and spaced therefrom a distance substantially equal to thethickness of the blade, and

of said member and depressible to a position below the plane of theupper surface of said member and adapted to automatically snap intoengagement with said blade to hold the latter in position after saidblade has been moved forwardly in contact with said mem ber and to itslimiting position.

4. In asafety razor, .a'substantially flat blade supporting plate formedof sheet metal, a blade carried thereby and adapted for slidingengagement therewith, stops integral with said plate for limiting theforward movement of said blade, guides integral with said plate andformed of a portion of the body thereof stamped upward from the plateintermediate its ends and lying in planes subs antially parallel to saidplate and spaced therefrom a distance substantially equal to thethickness of the blade,'said plate having an aperture therein adjacentthe rear side thereof, and a spring adjacent said aperture anddepressible to a position below the plane of the upper surface of theplate and adapted to'rise t irough said aperture and automatically snapinto engagement with the rear end of the blade to hold the latter inposition after said blade has been moved forwardly beneath said guidesand into engagement with said stops.

5. A safety razor comprising a one-piece sheet metal bar having one endbent at an acute angle to the main body and terminating in omb teethforminga blade support, said blade support having its opposite edgesformed with integral tongues bent toward a spring adjacent said handleat the reaf'side said member, a flat blade of substantially the. end';teeth having portions thereof pressed up forming limiting stops for thecutb tide, and a blade inserted between the tongues and adjacentportion. of

ting edge of the the blade support.

6. A safety razor comprising a one-piece sheet metal bar having one endbent at an acute angle tothe main body and terminating in comb teethforming a blade support, said blade support having its opposite edgesformed with integral tongues bent toward each other partially across theface thereof,

the end f teeth having portions thereof pressed up forming limitingstops for the cutting edge of the ade, and a blade inserted between thetongues and adjacent portion of the blade support, said bar having anintegral spring tongue stamped therefroin'and projecting forwardly overthe'upper edge of the blade.

' In testimony whereof I have signed'my name to this specification inthe presence of two subscribing Witnesses. I

. LOUIS B, PRAHAR. Witnesses:

EVERARD B. MARSHALL, C. W. FAIRBANK.

